unreadable white on yellow "what is color similarity"

[mlg7]

1. Click the cube on the right from color palette
2. On the dialog, click "what is color similarity?"
3. Try to read white on yellow.

Cannot make a screenshot, the white on yellow window disappears on any click.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: kolourpaint4 4:4.8.4-0ubuntu0.1
ProcVersionSignature: Ubuntu 3.11.0-26.45~precise1-generic 3.11.10.12
Uname: Linux 3.11.0-26-generic i686
ApportVersion: 2.0.1-0ubuntu17.8
Architecture: i386
Date: Wed Apr 1 14:33:14 2015
InstallationMedia: Ubuntu 12.04.4 LTS "Precise Pangolin" - Release i386 (20140204)
MarkForUpload: True
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: kolourpaint
UpgradeStatus: No upgrade log present (probably fresh install)